NLog отказывается работать

       //error logger
        private static NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();

  logger.Trace("program start");

 var config = new NLog.Config.LoggingConfiguration();
 
            var logfile = new NLog.Targets.FileTarget() { FileName = "log.txt", Name = "logfile" };
 
            config.LoggingRules.Add(new NLog.Config.LoggingRule("*", LogLevel.Debug, logfile));
 
            NLog.LogManager.Configuration = config;
          //  logger = LogManager.GetCurrentClassLogger();
            logger.Trace("Sample trace message");
            logger.Debug("Sample debug message");
            logger.Info("Sample informational message");
            logger.Warn("Sample warning message");
            logger.Error("Sample error message");
            logger.Fatal("Sample fatal error message");
 
        
            logger.Trace("program start");

  //var logfile = new NLog.Targets.FileTarget()
            //{
            //    FileName = "${basedir}/logs/${level}.log",
            //    CreateDirs = true,
            //    Layout = "${longdate} | ${uppercase:${level}} | ${logger} | ${message}",
            //    Name = "logfile"
            //};

logger.Trace(ex, "something string");

logger.Trace("some string", "Some another string");

logger.Error(ex, "something strig");

/// <summary>
        /// Writes the diagnostic message at the <c>Trace</c> level using the specified parameters.
        /// </summary>
        /// <param name="message">A <see langword="string" /> containing format items.</param>
        /// <param name="args">Arguments to format.</param>
        [MessageTemplateFormatMethod("message")]
void Trace([Localizable(false)] string message, params object[] args);
 
/// <summary>
        /// Writes the diagnostic message and exception at the <c>Error</c> level.
        /// </summary>
        /// <param name="message">A <see langword="string" /> to be written.</param>
        /// <param name="exception">An exception to be logged.</param>
void Error(Exception exception, [Localizable(false)] string message);

logger.Trace("some string {0}", "Some another string");

public static void Main()
    {
        var date = DateTime.Now;
        var user = new User{ Login = "Wolfdp", Id = Guid.NewGuid() };
        Console.Write(string.Format("Date: {0}; User: {1}; Message = {2}",
                     date,
                     user,
                     "Nya!"));
        
    }
    
    public class User
    {
        public string Login{get;set;}
        public Guid Id{get;set;}
        
        public override string ToString()
        {
        return Login + " #" + Id.ToString();
        }
    }